Logout problem in application

Maintain Session Once u login

Session["UserName"]=txtuserName.Text;

use this code while u click login button and when u logout clear the session in the logout button click event as follows,

Session.Clear();

 Session.Abandon();

Hope this vl work.

Mark this an answer if it works.

Sathiya_Narayanan, if this helps please login to Mark As Answer. | Alert Moderator

ok once when i logged in it should show the user name in top as how in dotnetfunda website how to do this task

SATHIYANARAYANAN

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Just use a label.And use the Session Created while u login to display the username in that label.The Code is as follows

lblwelcome.Text="Welcome "+ Session["UserName"].ToString();

Once u create the session in login u can use it anywhere in the application until u logout the application.

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it shows error message

Compiler Error Message: CS0019: Operator '+' cannot be applied to operands of type 'string' and 'method group'

if u have any examples give some link.

SATHIYANARAYANAN

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No i have worked with this code its working.Check once whether u have mentioned parenthesis near ToString().if you missed it may cause similar error

lblwelcome.Text = "Welcome " + Session["UserName"].ToString();

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ya first i dint put after i putting parenthesis its shows error

Object reference not set to an instance of an object.

SATHIYANARAYANAN

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ok in which line its showing an error where have u defined the Session["UserName"].

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ok is in aspx page have to add any script for this sessions

SATHIYANARAYANAN

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no you dont have to add anything in aspx page

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Please given this code

Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButton1.Click
FormsAuthentication.SignOut()
Response.Redirect(FormsAuthentication.LoginUrl)
End Sub

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Response.Cache.SetExpires(DateTime.UtcNow.AddMinutes(-1))
Response.Cache.SetCacheability(HttpCacheability.NoCache)
Response.Cache.SetNoStore()
End Sub

Rathnayake

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when you login set the session variable like this

session["UserName"] = UserName.text

Thanks n Regards
Bhupendra Tiwari

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Use a Masterpage and Open all pages if that have Valid Session, if session Expired, then Refresh Page and Logout User from Application.

You can use this in PageLoad event.

example code.

if(Session["UserName"]=="")

{

Response.Write("<script>alert('You are not Logged In, Redirecting you to Login Page!');</script>");

Response.Redirect("LoginPage.aspx");

}

John Bhatt
Glad to Know, Free to Share.....
http://www.johnbhatt.com

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When you click Back button your page is displayed from browser Cache so you have to clear cache every time you logout. that will solve your Problem

Ajay
ajaypatelfromsanthal.blogspot.in

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